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The Motorola 6800 microprocessor was the first for which an undocumented assembly mnemonic HCF became widely known. The operation codes (opcodes—the portions of the machine language instructions that specify an operation to be performed) hexadecimal 9D and DD were reported and given the unofficial mnemonic HCF in a December 1977 article by Gerry Wheeler in BYTE magazine on undocumented ...
MicroPython was designed specifically to support the typical performance gap between microcontrollers and Python. [18] Python code is able to directly access and interact with hardware, with increased hardware possibilities that are not available using a normal Python application that is run on an operating system. [19]
Bricx Command Center (BricxCC) is the integrated development environment (IDE) of Next Byte Codes (NBC), Not Quite C (NQC) and Not eXactly C (NXC). These programming languages are used to program the Robots in the Lego Mindstorms series. Not Quite C and Not eXactly C have a syntax like C.
Since issuing the HLT instruction requires ring 0 access, it can only be run by privileged system software such as the kernel. Because of this, it is often best practice in application programming to use the application programming interface (API) provided for that purpose by the operating system when no more work can be done, such as Linux's ...
In Java, any method can call System.exit(int status), unless a security manager does not permit it.This will terminate the currently running Java Virtual Machine. "The argument serves as a status code; by convention, a nonzero status code indicates abnormal termination."
After a system has experienced an oops, some internal resources may no longer be operational. Thus, even if the system appears to work correctly, undesirable side effects may have resulted from the active task being killed. A kernel oops often leads to a kernel panic when the system attempts to use resources that have been lost. Some kernels ...
SYS is also a command in Microsoft BASIC used to execute a machine language program in memory. The command took the form SYS n where n is a memory location where the executable code starts. Home computer platforms typically publicised dozens of entry points to built-in routines (such as Commodore's KERNAL [ 10 ] ) that were used by programmers ...